doctor-bond wrote:
Tricky one this: my ‘88 has a 27.2 post, but it looks like the 89 team had a 26.8 going by this pretty detailed post.
http://www.retrobike.co.uk/forum/viewto ... p;t=190169I can’t figure out any logic or continuity on frame numbers a cross model years.
And as you mention, there seem to be lots of pics of comps without a rear canti noodle, and both have the shaped seat tube top.
According to the catalogue there is half a degree difference in head tube angle (!), don’t know how you’d measure that ....
So short of getting hold of another 89 frame for a side by side comparison I’m running out of ideas.
Either way, it’ll build into a goodun

Thanks doctor-bond.
Getting hold of another 1989 Stumpjumper as a bare frame probably isn't going to happen.

So Instead, I've managed to get the frame on some scales.
After a long chat with someone with far greater knowledge of Tange Prestige tubing than me! - We've come to the conclusion that this is indeed a 1989 Stumpjumper Comp. ( I've changed the title of my thread to reflect this....but have kept all the other references in the thread )
How did we decide this?
1) The frame weighs 2470g
A comparable Tange Prestige frame of a Similar vintage such as an Orange prestige weighs 2000g (2KG) Tange prestige is approximately 1/5 lighter than Cromo steel.
This would mean that this frame is not Tange Prestige as it's 1/5 heavier than an Orange Prestige.
2) The other frame features such as the 26.8mm seatpost, top of seatpost detail, rear seat clamp without band, and seat stay mounted cantilevers point to this being a 1989 Stumpjumper.
3) The trace of Original paint in the fork steer is white with a gold tint. Traces of this were found all over the frame when the repainted white was stripped.
Pic 1 shows what it would have looked like in original colours.....except that magazine pic has the cantilever noodle!
The frame, fork and stem are now fully stripped back to bare metal.
Decals have been ordered.
Fully committed to a re spray now!
Cheers.
boy"O"boy